FIELD: hydrometallurgy. SUBSTANCE: low-percentage lime sludges are first leached with solution of sulfuric acid of moderate concentration and produced solution of zinc vitrol is directed for precipitation of sulfopone by sulfurizing it with elementary sulfur and lime. EFFECT: simplified process with use of low-percentage lime sludges. 2 cl, 3 tbl
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Authors
Dates
1995-04-30—Published
1993-01-18—Filed